[ale] Flash drive format - kworker errors

Tom & JaVonn PairOfTwins at mindspring.com
Mon Jul 18 20:43:07 EDT 2016 

All:

All my searches have turned up few clues.

Bought a pair of PNY 64 GB USB 3 Type A flash drives on sale, and 
they're highly rated.  Tried to format ext3 and it took literally a 
couple of hours, though it looked normal at first.  Tried in both USB 3 
and USB 2 slots of original PC, then again in USB 2 of another PC.

syslog shows lots of Call Traces by kworker.

Here's my second attempt, plain ext2:
----------------------------------------------------------------------------------------------------
ubuntu-gnome at ubuntu-gnome:~$ sudo mke2fs -m 2 /dev/sda1
mke2fs 1.42.13 (17-May-2015)
Creating filesystem with 15728640 4k blocks and 3932160 inodes
Filesystem UUID: 03ce1128-2ef5-4d2c-926f-3a131a65c617
Superblock backups stored on blocks:
     32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 
2654208,
     4096000, 7962624, 11239424

Allocating group tables: done
Writing inode tables: done
Writing superblocks and filesystem accounting information: done

ubuntu-gnome at ubuntu-gnome:~$
----------------------------------------------------------------------------
What shows in syslog, with a new Call Trace every 2 minutes:

Jul 18 20:50:25 ubuntu-gnome kernel: [  786.745662]  sda: sda1
Jul 18 20:50:25 ubuntu-gnome kernel: [  787.279540]  sda: sda1
Jul 18 20:50:31 ubuntu-gnome kernel: [  793.247853]  sda: sda1
Jul 18 20:50:34 ubuntu-gnome AptDaemon: INFO: Quitting due to inactivity
Jul 18 20:50:34 ubuntu-gnome AptDaemon: INFO: Quitting was requested
Jul 18 20:50:34 ubuntu-gnome org.freedesktop.PackageKit[1039]: 20:50:34 
AptDaemon [INFO]: Quitting due to inactivity
Jul 18 20:50:34 ubuntu-gnome org.freedesktop.PackageKit[1039]: 20:50:34 
AptDaemon [INFO]: Quitting was requested
Jul 18 20:52:23 ubuntu-gnome systemd[1]: Starting Cleanup of Temporary 
Directories...
Jul 18 20:52:23 ubuntu-gnome systemd-tmpfiles[2455]: 
[/usr/lib/tmpfiles.d/var.conf:14] Duplicate line for path "/var/log", 
ignoring.
Jul 18 20:52:23 ubuntu-gnome systemd[1]: Started Cleanup of Temporary 
Directories.
Jul 18 21:17:01 ubuntu-gnome CRON[2520]: (root) CMD (   cd / && 
run-parts --report /etc/cron.hourly)
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168038] INFO: task 
kworker/u16:1:2537 blocked for more than 120 seconds.
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168043]       Not tainted 
4.4.0-21-generic #37-Ubuntu
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168045] "echo 0 > 
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168047] kworker/u16:1 D 
ffff88010645fa98     0  2537      2 0x00000000
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168056] Workqueue: 
events_freezable_power_ disk_events_workfn
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168059] ffff88010645fa98 
ffff88010645fa70 ffff88010bd03300 ffff8800d85b6600
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168062] ffff880106460000 
ffff880117c56d00 7fffffffffffffff ffff880112b273d0
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168065] ffff880112b27360 
ffff88010645fab0 ffffffff818203f5 0000000000000000
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168068] Call Trace:
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168074] [<ffffffff818203f5>] 
schedule+0x35/0x80
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168078] [<ffffffff81823515>] 
schedule_timeout+0x1b5/0x270
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168082] [<ffffffff810b23ec>] 
? __enqueue_entity+0x6c/0x70
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168085] [<ffffffff810b7fd2>] 
? enqueue_entity+0x3a2/0xc70
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168088] [<ffffffff813fdfe5>] 
? find_next_bit+0x15/0x20
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168091] [<ffffffff810b32bd>] 
? select_idle_sibling+0xbd/0x120
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168094] [<ffffffff8181f944>] 
io_schedule_timeout+0xa4/0x110
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168097] [<ffffffff813b91b1>] 
get_request+0x411/0x790
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168101] [<ffffffff810c3a10>] 
? wake_atomic_t_function+0x60/0x60
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168104] [<ffffffff813b95bb>] 
blk_get_request+0x8b/0xf0
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168107] [<ffffffff815ad1bd>] 
scsi_execute+0x3d/0x1d0
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168110] [<ffffffff815aeefe>] 
scsi_execute_req_flags+0x8e/0xf0
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168113] [<ffffffff815af601>] 
scsi_test_unit_ready+0x91/0x150
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168117] [<ffffffff815bd552>] 
sd_check_events+0x132/0x190
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168120] [<ffffffff813cad60>] 
disk_check_events+0x60/0x150
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168123] [<ffffffff813cae66>] 
disk_events_workfn+0x16/0x20
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168126] [<ffffffff81099ff2>] 
process_one_work+0x162/0x480
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168129] [<ffffffff8109a35b>] 
worker_thread+0x4b/0x4c0
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168131] [<ffffffff8109a310>] 
? process_one_work+0x480/0x480
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168134] [<ffffffff8109a310>] 
? process_one_work+0x480/0x480
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168137] [<ffffffff810a0528>] 
kthread+0xd8/0xf0
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168140] [<ffffffff810a0450>] 
? kthread_create_on_node+0x1e0/0x1e0
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168143] [<ffffffff8182488f>] 
ret_from_fork+0x3f/0x70
Jul 18 21:37:18 ubuntu-gnome kernel: [ 3600.168146] [<ffffffff810a0450>] 
? kthread_create_on_node+0x1e0/0x1e0
Jul 18 21:37:59 ubuntu-gnome systemd[1]: Started CUPS Scheduler.
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168026] INFO: task 
kworker/u16:0:6 blocked for more than 120 seconds.
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168032]       Not tainted 
4.4.0-21-generic #37-Ubuntu
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168033] "echo 0 > 
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168035] kworker/u16:0 D 
ffff88011280b638     0     6      2 0x00000000
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168044] Workqueue: writeback 
wb_workfn (flush-8:0)
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168047] ffff88011280b638 
ffff880112b27470 ffff8800d93aa640 ffff880112fb3fc0
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168051] ffff88011280c000 
ffff880117c16d00 7fffffffffffffff ffff880112b273b8
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168054] ffff880112b27360 
ffff88011280b650 ffffffff818203f5 0000000000000000
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168057] Call Trace:
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168063] [<ffffffff818203f5>] 
schedule+0x35/0x80
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168066] [<ffffffff81823515>] 
schedule_timeout+0x1b5/0x270
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168070] [<ffffffff813b5793>] 
? queue_unplugged+0xa3/0xb0
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168073] [<ffffffff8181f944>] 
io_schedule_timeout+0xa4/0x110
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168076] [<ffffffff813b91b1>] 
get_request+0x411/0x790
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168080] [<ffffffff810c3a10>] 
? wake_atomic_t_function+0x60/0x60
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168084] [<ffffffff813bb895>] 
blk_queue_bio+0x125/0x3e0
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168086] [<ffffffff813b9c62>] 
generic_make_request+0xf2/0x1d0
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168089] [<ffffffff813b9db6>] 
submit_bio+0x76/0x170
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168092] [<ffffffff81244b0f>] 
submit_bh_wbc+0x12f/0x160
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168095] [<ffffffff81246ae5>] 
__block_write_full_page.constprop.38+0x115/0x3a0
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168098] [<ffffffff812470d0>] 
? I_BDEV+0x20/0x20
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168100] [<ffffffff812470d0>] 
? I_BDEV+0x20/0x20
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168103] [<ffffffff81246eb5>] 
block_write_full_page+0x145/0x170
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168106] [<ffffffff81247ca8>] 
blkdev_writepage+0x18/0x20
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168109] [<ffffffff81198513>] 
__writepage+0x13/0x30
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168112] [<ffffffff8119900e>] 
write_cache_pages+0x1ee/0x510
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168115] [<ffffffff81198500>] 
? wb_position_ratio+0x1f0/0x1f0
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168118] [<ffffffff81199381>] 
generic_writepages+0x51/0x80
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168121] [<ffffffff810b7fd2>] 
? enqueue_entity+0x3a2/0xc70
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168124] [<ffffffff8119b7fe>] 
do_writepages+0x1e/0x30
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168127] [<ffffffff8123b055>] 
__writeback_single_inode+0x45/0x330
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168129] [<ffffffff8123b852>] 
writeback_sb_inodes+0x262/0x590
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168133] [<ffffffff8123bc0c>] 
__writeback_inodes_wb+0x8c/0xc0
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168135] [<ffffffff8123bf63>] 
wb_writeback+0x253/0x310
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168138] [<ffffffff8123c7dd>] 
wb_workfn+0x24d/0x400
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168142] [<ffffffff81099ff2>] 
process_one_work+0x162/0x480
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168145] [<ffffffff8109a35b>] 
worker_thread+0x4b/0x4c0
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168148] [<ffffffff8109a310>] 
? process_one_work+0x480/0x480
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168151] [<ffffffff810a0528>] 
kthread+0xd8/0xf0
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168153] [<ffffffff810a0450>] 
? kthread_create_on_node+0x1e0/0x1e0
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168157] [<ffffffff8182488f>] 
ret_from_fork+0x3f/0x70
Jul 18 21:39:18 ubuntu-gnome kernel: [ 3720.168159] [<ffffffff810a0450>] 
? kthread_create_on_node+0x1e0/0x1e0
Jul 18 21:40:01 ubuntu-gnome 
org.gnome.evolution.dataserver.Sources5[1422]: ** 
(evolution-source-registry:1815): WARNING **: 
secret_service_search_sync: must specify at least one attribute to match
...

Any insight???

Thanks,
Tom

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